/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 13:24:39,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 13:24:39,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-14 13:24:39,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 13:24:39,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 13:24:39,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 13:24:39,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 13:24:39,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 13:24:39,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 13:24:39,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 13:24:39,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 13:24:39,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 13:24:39,118 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 13:24:39,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 13:24:39,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 13:24:39,118 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 13:24:39,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 13:24:39,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 13:24:39,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 13:24:39,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 13:24:39,323 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 13:24:39,324 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 13:24:39,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2025-04-14 13:24:40,522 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a014c42c2/78c76161228943f29421cb53ddef89be/FLAGf7d576927 [2025-04-14 13:24:40,708 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 13:24:40,708 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2025-04-14 13:24:40,716 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a014c42c2/78c76161228943f29421cb53ddef89be/FLAGf7d576927 [2025-04-14 13:24:41,573 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a014c42c2/78c76161228943f29421cb53ddef89be [2025-04-14 13:24:41,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 13:24:41,575 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 13:24:41,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 13:24:41,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 13:24:41,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 13:24:41,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adf0182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41, skipping insertion in model container [2025-04-14 13:24:41,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 13:24:41,759 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2025-04-14 13:24:41,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 13:24:41,780 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 13:24:41,812 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2025-04-14 13:24:41,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 13:24:41,838 INFO L204 MainTranslator]: Completed translation [2025-04-14 13:24:41,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41 WrapperNode [2025-04-14 13:24:41,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 13:24:41,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 13:24:41,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 13:24:41,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 13:24:41,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,872 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 129 [2025-04-14 13:24:41,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 13:24:41,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 13:24:41,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 13:24:41,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 13:24:41,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,894 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 13:24:41,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-14 13:24:41,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-14 13:24:41,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-14 13:24:41,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (1/1) ... [2025-04-14 13:24:41,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 13:24:41,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:41,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 13:24:41,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 13:24:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 13:24:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 13:24:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 13:24:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 13:24:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 13:24:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-14 13:24:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-14 13:24:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 13:24:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-14 13:24:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 13:24:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 13:24:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 13:24:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 13:24:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 13:24:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-14 13:24:41,943 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 13:24:42,002 INFO L234 CfgBuilder]: Building ICFG [2025-04-14 13:24:42,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 13:24:42,224 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 13:24:42,224 INFO L283 CfgBuilder]: Performing block encoding [2025-04-14 13:24:42,376 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 13:24:42,376 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 13:24:42,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 01:24:42 BoogieIcfgContainer [2025-04-14 13:24:42,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-14 13:24:42,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 13:24:42,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 13:24:42,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 13:24:42,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 01:24:41" (1/3) ... [2025-04-14 13:24:42,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8d99c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 01:24:42, skipping insertion in model container [2025-04-14 13:24:42,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:24:41" (2/3) ... [2025-04-14 13:24:42,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8d99c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 01:24:42, skipping insertion in model container [2025-04-14 13:24:42,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 01:24:42" (3/3) ... [2025-04-14 13:24:42,384 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2025-04-14 13:24:42,392 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 13:24:42,394 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-sum.wvr.c that has 4 procedures, 33 locations, 36 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-14 13:24:42,395 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 13:24:42,453 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-14 13:24:42,483 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 13:24:42,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 13:24:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:42,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-14 13:24:42,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-14 13:24:42,550 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 13:24:42,562 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 13:24:42,569 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d04435a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 13:24:42,569 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 13:24:42,910 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:42,910 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:42,910 INFO L139 ounterexampleChecker]: Examining path program with hash -265979458, occurence #1 [2025-04-14 13:24:42,910 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:42,910 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:42,914 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:42,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1656455225, now seen corresponding path program 1 times [2025-04-14 13:24:42,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:42,919 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960910320] [2025-04-14 13:24:42,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:42,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:42,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-14 13:24:43,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-14 13:24:43,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:43,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 13:24:43,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:43,336 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960910320] [2025-04-14 13:24:43,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960910320] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:43,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:43,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 13:24:43,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106495895] [2025-04-14 13:24:43,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:43,342 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 13:24:43,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:43,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 13:24:43,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 13:24:43,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:43,356 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:43,357 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:43,358 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:43,464 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:43,464 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 13:24:43,466 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:43,466 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:43,467 INFO L139 ounterexampleChecker]: Examining path program with hash -265979458, occurence #2 [2025-04-14 13:24:43,467 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:43,467 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:43,467 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:43,467 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-14 13:24:43,467 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:43,467 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-14 13:24:43,478 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:43,478 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 13:24:43,478 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:43,479 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:43,479 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:43,479 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-14 13:24:43,498 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:43,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1893962161, now seen corresponding path program 1 times [2025-04-14 13:24:43,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 13:24:43,499 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854154207] [2025-04-14 13:24:43,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:43,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:43,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 13:24:43,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 13:24:43,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:43,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:43,684 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 13:24:43,684 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854154207] [2025-04-14 13:24:43,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854154207] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:43,684 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2118091755] [2025-04-14 13:24:43,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:43,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:43,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 13:24:43,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 13:24:43,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:43,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:43,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 13:24:43,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:43,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2118091755] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:43,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 13:24:43,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-04-14 13:24:43,858 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 13:24:43,858 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-14 13:24:43,858 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:43,858 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-04-14 13:24:43,858 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:43,858 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-14 13:24:43,859 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:43,859 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:43,859 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:43,859 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:43,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1422748963, now seen corresponding path program 1 times [2025-04-14 13:24:43,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:43,859 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791145355] [2025-04-14 13:24:43,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:43,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:43,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-14 13:24:43,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-14 13:24:43,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:43,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:44,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:44,034 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791145355] [2025-04-14 13:24:44,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791145355] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:44,034 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905414047] [2025-04-14 13:24:44,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:44,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:44,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:44,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-14 13:24:44,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-14 13:24:44,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-14 13:24:44,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:44,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:44,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 13:24:44,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:44,235 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:44,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 13:24:44,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905414047] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:44,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:44,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-04-14 13:24:44,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349441915] [2025-04-14 13:24:44,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:44,309 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-14 13:24:44,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:44,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-14 13:24:44,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-04-14 13:24:44,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:44,310 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:44,310 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:44,310 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:44,310 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:44,466 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:44,466 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:44,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-14 13:24:44,666 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable1 [2025-04-14 13:24:44,667 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:44,667 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:44,667 INFO L139 ounterexampleChecker]: Examining path program with hash -265979458, occurence #3 [2025-04-14 13:24:44,667 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:44,667 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:44,667 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:44,667 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 13:24:44,667 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:44,667 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 13:24:44,667 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:44,668 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:44,668 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:44,668 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:44,668 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:44,668 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-14 13:24:44,683 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:44,683 INFO L85 PathProgramCache]: Analyzing trace with hash 217592566, now seen corresponding path program 1 times [2025-04-14 13:24:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 13:24:44,683 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566208200] [2025-04-14 13:24:44,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:44,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:44,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-14 13:24:44,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-14 13:24:44,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:44,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:44,799 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 13:24:44,799 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566208200] [2025-04-14 13:24:44,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566208200] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:44,799 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [174759784] [2025-04-14 13:24:44,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:44,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:44,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-14 13:24:44,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-14 13:24:44,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:44,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:44,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 13:24:44,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 13:24:44,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [174759784] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:44,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 13:24:44,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-04-14 13:24:44,923 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 13:24:44,923 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-14 13:24:44,923 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:44,923 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2025-04-14 13:24:44,924 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:44,924 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-14 13:24:44,924 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:44,924 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:44,924 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:44,924 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:44,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2004052423, now seen corresponding path program 2 times [2025-04-14 13:24:44,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:44,924 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792652847] [2025-04-14 13:24:44,924 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:44,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:44,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 2 equivalence classes. [2025-04-14 13:24:44,940 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 46 statements. [2025-04-14 13:24:44,940 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 13:24:44,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-14 13:24:45,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:45,036 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792652847] [2025-04-14 13:24:45,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792652847] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:45,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:45,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-14 13:24:45,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108689843] [2025-04-14 13:24:45,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:45,036 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-14 13:24:45,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:45,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-14 13:24:45,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-04-14 13:24:45,037 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:45,037 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:45,037 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:45,037 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:45,037 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:45,037 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:45,178 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:45,178 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:45,178 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:45,178 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2025-04-14 13:24:45,178 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:45,178 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:45,179 INFO L139 ounterexampleChecker]: Examining path program with hash -439466287, occurence #1 [2025-04-14 13:24:45,179 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:45,179 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:45,179 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1086210327, now seen corresponding path program 3 times [2025-04-14 13:24:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:45,179 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469201324] [2025-04-14 13:24:45,179 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 13:24:45,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:45,191 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 50 statements into 3 equivalence classes. [2025-04-14 13:24:45,231 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 40 of 50 statements. [2025-04-14 13:24:45,231 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-14 13:24:45,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-14 13:24:45,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:45,431 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469201324] [2025-04-14 13:24:45,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469201324] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:45,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:45,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-14 13:24:45,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79285628] [2025-04-14 13:24:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:45,431 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 13:24:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:45,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 13:24:45,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-04-14 13:24:45,432 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:45,432 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:45,432 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:45,432 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:45,432 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:45,432 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:45,432 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:45,762 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:45,762 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:45,762 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:45,762 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:45,763 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-14 13:24:45,763 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:45,763 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:45,763 INFO L139 ounterexampleChecker]: Examining path program with hash -1772417960, occurence #1 [2025-04-14 13:24:45,763 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:45,763 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:45,763 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:45,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1122561590, now seen corresponding path program 1 times [2025-04-14 13:24:45,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:45,763 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854153023] [2025-04-14 13:24:45,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:45,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:45,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-04-14 13:24:45,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-04-14 13:24:45,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:45,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-14 13:24:45,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:45,979 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854153023] [2025-04-14 13:24:45,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854153023] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:45,980 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118665020] [2025-04-14 13:24:45,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 13:24:45,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:45,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:45,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:45,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-14 13:24:46,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-04-14 13:24:46,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-04-14 13:24:46,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 13:24:46,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:46,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-14 13:24:46,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-14 13:24:46,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-14 13:24:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118665020] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:46,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:46,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-04-14 13:24:46,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915369376] [2025-04-14 13:24:46,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:46,304 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-14 13:24:46,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:46,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-14 13:24:46,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2025-04-14 13:24:46,305 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:46,305 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:46,305 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 18 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:46,305 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:46,305 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:46,305 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:46,305 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:46,305 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:46,457 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:46,457 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:46,457 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:46,457 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:46,458 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:46,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-14 13:24:46,662 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:46,662 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:46,662 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:46,662 INFO L139 ounterexampleChecker]: Examining path program with hash -1772417960, occurence #2 [2025-04-14 13:24:46,662 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:46,662 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:46,662 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 13:24:46,663 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:46,663 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:46,663 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 13:24:46,663 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-14 13:24:46,663 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-14 13:24:46,663 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-04-14 13:24:46,663 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2025-04-14 13:24:46,663 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:46,663 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-04-14 13:24:46,663 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:46,663 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:46,663 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:46,664 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:46,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1575301266, now seen corresponding path program 2 times [2025-04-14 13:24:46,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:46,664 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348470690] [2025-04-14 13:24:46,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:46,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:46,680 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-04-14 13:24:46,697 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 13:24:46,697 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 13:24:46,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-04-14 13:24:46,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:46,851 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348470690] [2025-04-14 13:24:46,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348470690] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:46,851 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640444905] [2025-04-14 13:24:46,851 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 13:24:46,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:46,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:46,853 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:46,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-14 13:24:46,909 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-04-14 13:24:46,942 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 13:24:46,942 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 13:24:46,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:46,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-14 13:24:46,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-04-14 13:24:47,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 13:24:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-04-14 13:24:47,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640444905] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 13:24:47,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 13:24:47,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-04-14 13:24:47,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284131735] [2025-04-14 13:24:47,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 13:24:47,180 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-14 13:24:47,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:47,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-14 13:24:47,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2025-04-14 13:24:47,180 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:47,180 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:47,180 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.368421052631579) internal successors, (102), 18 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:47,181 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:47,181 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:47,181 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,181 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:47,181 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,181 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:47,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:47,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:47,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:47,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 13:24:47,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-14 13:24:47,613 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:47,613 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:47,613 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:47,613 INFO L139 ounterexampleChecker]: Examining path program with hash -1772417960, occurence #3 [2025-04-14 13:24:47,613 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 13:24:47,613 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 13:24:47,613 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 13:24:47,614 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 13:24:47,614 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 13:24:47,614 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 13:24:47,614 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-14 13:24:47,614 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-14 13:24:47,614 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-04-14 13:24:47,614 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-04-14 13:24:47,614 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-04-14 13:24:47,614 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 13:24:47,614 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-04-14 13:24:47,614 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 13:24:47,614 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 13:24:47,614 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:47,615 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:47,615 INFO L85 PathProgramCache]: Analyzing trace with hash -948620021, now seen corresponding path program 3 times [2025-04-14 13:24:47,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:47,615 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547663931] [2025-04-14 13:24:47,615 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 13:24:47,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:47,624 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 73 statements into 4 equivalence classes. [2025-04-14 13:24:47,634 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 50 of 73 statements. [2025-04-14 13:24:47,634 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-14 13:24:47,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-04-14 13:24:47,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:47,800 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547663931] [2025-04-14 13:24:47,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547663931] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:47,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:47,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 13:24:47,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828732705] [2025-04-14 13:24:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:47,800 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 13:24:47,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:47,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 13:24:47,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-14 13:24:47,801 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:47,801 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:47,801 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:47,801 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:47,801 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:47,801 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,801 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:47,801 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,801 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 13:24:47,801 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:47,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:47,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:47,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:47,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:47,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 13:24:47,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:47,940 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-14 13:24:47,940 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:47,940 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:47,941 INFO L139 ounterexampleChecker]: Examining path program with hash 395599056, occurence #1 [2025-04-14 13:24:47,941 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:47,941 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:47,941 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:47,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1202575151, now seen corresponding path program 4 times [2025-04-14 13:24:47,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:47,941 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347209610] [2025-04-14 13:24:47,941 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 13:24:47,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:47,951 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 80 statements into 2 equivalence classes. [2025-04-14 13:24:47,958 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 70 of 80 statements. [2025-04-14 13:24:47,958 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-14 13:24:47,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-04-14 13:24:48,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:48,050 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347209610] [2025-04-14 13:24:48,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347209610] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 13:24:48,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 13:24:48,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 13:24:48,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870710660] [2025-04-14 13:24:48,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 13:24:48,050 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 13:24:48,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 13:24:48,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 13:24:48,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-14 13:24:48,051 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:48,051 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 13:24:48,051 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 13:24:48,051 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:48,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:48,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:48,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:48,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:48,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 13:24:48,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:48,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 13:24:48,180 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 13:24:48,180 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:48,180 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:48,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 13:24:48,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 13:24:48,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 13:24:48,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 13:24:48,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-14 13:24:48,181 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-14 13:24:48,181 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-14 13:24:48,181 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 13:24:48,181 INFO L139 ounterexampleChecker]: Examining path program with hash -441993642, occurence #1 [2025-04-14 13:24:48,181 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 13:24:48,181 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 13:24:48,181 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 13:24:48,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1084224370, now seen corresponding path program 4 times [2025-04-14 13:24:48,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 13:24:48,182 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027724742] [2025-04-14 13:24:48,182 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 13:24:48,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 13:24:48,189 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 60 statements into 2 equivalence classes. [2025-04-14 13:24:48,253 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-04-14 13:24:48,253 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 13:24:48,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:49,733 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-04-14 13:24:49,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 13:24:49,734 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027724742] [2025-04-14 13:24:49,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027724742] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 13:24:49,734 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047788107] [2025-04-14 13:24:49,734 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 13:24:49,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 13:24:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 13:24:49,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 13:24:49,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-14 13:24:49,801 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 60 statements into 2 equivalence classes. [2025-04-14 13:24:49,941 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-04-14 13:24:49,941 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 13:24:49,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 13:24:49,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 79 conjuncts are in the unsatisfiable core [2025-04-14 13:24:49,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 13:24:50,532 INFO L325 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2025-04-14 13:24:50,533 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 46 [2025-04-14 13:24:51,176 INFO L325 Elim1Store]: treesize reduction 52, result has 37.3 percent of original size [2025-04-14 13:24:51,176 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 111 treesize of output 106 [2025-04-14 13:24:52,730 INFO L325 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2025-04-14 13:24:52,730 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 259 treesize of output 195 [2025-04-14 13:24:56,423 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-14 13:24:56,424 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 36 select indices, 36 select index equivalence classes, 3 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 630 case distinctions, treesize of input 609 treesize of output 1833 [2025-04-14 13:29:57,866 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-04-14 13:29:57,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2025-04-14 13:29:57,867 WARN L310 FreeRefinementEngine]: Global settings require throwing the following exception [2025-04-14 13:29:57,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-14 13:29:58,068 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-04-14 13:29:58,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-14 13:29:58,075 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:589) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:726) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:241) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:191) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:285) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:56) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:427) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2025-04-14 13:29:58,079 INFO L158 Benchmark]: Toolchain (without parser) took 316503.67ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 101.1MB in the beginning and 429.0MB in the end (delta: -328.0MB). Peak memory consumption was 347.0MB. Max. memory is 8.0GB. [2025-04-14 13:29:58,079 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 13:29:58,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.25ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 85.7MB in the end (delta: 15.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-14 13:29:58,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.61ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 83.8MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 13:29:58,080 INFO L158 Benchmark]: Boogie Preprocessor took 29.87ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 13:29:58,080 INFO L158 Benchmark]: RCFGBuilder took 473.70ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 33.4MB in the end (delta: 48.9MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2025-04-14 13:29:58,080 INFO L158 Benchmark]: TraceAbstraction took 315700.40ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 32.7MB in the beginning and 429.0MB in the end (delta: -396.3MB). Peak memory consumption was 279.9MB. Max. memory is 8.0GB. [2025-04-14 13:29:58,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 262.25ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 85.7MB in the end (delta: 15.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.61ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 83.8MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.87ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 473.70ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 33.4MB in the end (delta: 48.9MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * TraceAbstraction took 315700.40ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 32.7MB in the beginning and 429.0MB in the end (delta: -396.3MB). Peak memory consumption was 279.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...